Highway / DC + BESS

Highway DC Fast Charging with BESS Buffer

A highway charging reference showing how DC fast chargers and battery buffering can reduce grid upgrade pressure for service-area projects.

150-300kW charging215kWh BESS optionPeak bufferingHighway dwell time
Highway DC Fast Charging with BESS Buffer
Country / MarketMulti-market
Year2025
Supply Scope150-300kW DC chargers, 215kWh BESS buffer, EMS scheduling

Project Background

Service-area operators wanted high-power charging but faced grid capacity limits, demand charges and long utility upgrade timelines.

Highway DC Fast Charging with BESS Buffer visual reference
Project visual reference. Customer names may be anonymized for confidentiality.

SUNFULL Approach

  • Designed the site around charging peak windows instead of charger nameplate power alone.
  • Used BESS buffering to smooth demand and support multiple charging events.
  • Prepared RFQ inputs for transformer capacity, vehicle mix and expected charging sessions per day.

Result and Buyer Takeaway

The configuration gave the buyer a practical alternative to immediate grid upgrades and improved the commercial case for staged highway charging rollout.

RFQ checklist for a similar project

Send destination country, charger power or storage capacity, site type, expected quantity, connector standard, communication protocol, certification needs, branding requirements and target delivery schedule.